other that I am not creative enough to think of

I will start of with a vote for giving to a partner on her hands and knees, and receiving sitting with partner on her knees. (never had oral with a guy, so I can't say. feel free to make suggestions though ).

Receiving any way I love! Most of the time, I like to receive while I'm lying on my back, but sometimes, it just feels great to be sitting down and holding a woman's head while she deep throats you - that is an amazing situation

The first few girlfriends I had that gave me blowjobs nearly always gave me one while I was sitting ( a lot of times in a car) and they sucked on my cock from the side. I didn't realize what a difference it could make from having my cock sucked and licked on from the front until I was standing once and my first steady girlfriend sucked on my cock while on her knees in front of me. There is a big difference when they can use their tongue on the underside of the cock on it's most sensitive spots.

I now love to sit on the couch and have my wife suck on my cock while she kneels between my legs. I can comfortably sit back and watch her enjoy my cock. I also like to stand but when I cum my knees get very weak and I tend to fall over.... yes, it is that good.